Demountable rim



R. H. PIERCE AND G. A. ANDERSON.

DEMOUNTABLE RIM- APPLICATION FILED JUNE 91 192i.

Patented May 16, 1922.

- lA/l/E/VTOHS R. H. PIERCE GEORGE/ANDERSON ATTORNEYS WITNESSES staresRALPH H. PIERCE AND GEORGE A, ANDERSON, OF EUGENE, OREGON.

Application filed June 9, 1921.

To all whom it may concern:

Be it known that we, RALPH H. PIERCE and Gnoncn A. ANDERSON, citizens ofthe United States, and residents of Eugene, in the'county of Lane andState of Oregon, have invented a new and Improved Demountable Rim, ofwhich the following is a full, clear, and exact description.

This invention relates to improvements in demountable rims, an object ofthe invention being to provide a simple positive locking device forattaching rims to vehicle wheels.

Another object is to provide a device which will facilitate the changingof rimsand which may be adjusted for wear.

Still another object is to provide a demountable rim in which the use ofbolted-on lugs is eliminated, and a rim which will be practical inconstruction, strong, durable and eflicient in use, and comparativelyinexpensive to manufacture.

With these and other objects in view, the invention consists in certainnovel features of construction and combinations and arrangements ofparts as will be more fully hereinafter described and pointed out in theclaims.

In the accompanying drawings Figure 1 is a fragmentary view in sideelevation illustrating our improved rim in applied position Figure 2 isa fragmentary view in longitudinal section through the rim, felly andexpanding, mechanism, on the line 22 of Figure 3;

Figure 3 is a broken view in transverse section through the rim;

Figure 4 is an enlarged plan view illustrating the details of theexpanding mechanism; and

Figure 5 is an edge view of Figure 4.

Referring in detail to the drawings, 1 represents a conventional form ofchannelled steel felly. The outer side of the felly terminates in anoutwardly and upwardly pre sented flange 2, engageable with a dependingbevelled annular rib 4, on a rim 5.

We have illustrated a rim of the conventional clincher type. Adjacentthe other side of the rim, it is provided-with an inwardly presentedannular bevelled rib 6, which is ordinarily held in place by a flange 6on the felly 1. Vith our invention, however, a portion of the felly iscut away, as indicated at 7 and a portion of the rib 6 is engaged by anoutstru'ck flange 8 integral with an ar- Specification of LettersBatent.

DEMOUNTABLE RIM.

Patented May 16,1922.

Serial. No. 476,261.

the rim.

Various expedients might be resorted to for imparting this desiredcircumferential movement to the member 9. We have illustrated oneconvenient mechanism for doing The felly 1 is provided with an instruckportion such as 12, to conveniently acco1nmodate the actuatingmechanism. A bolt 13 is journalled transversely in the felly 1 andincludes a head such as 14, located on the outside of the felly. Thisbolt acts as a crank shaft and is rigidly connected to a crank arm suchas 15. A hollow internally threaded sleeve 16 includes at one end abifurcated portion 17 straddling the crank arm 15 and pivotallyconnected thereto by a pin 18. A cross bar 19 operatively connected tothe inner face of the member 9, as indicated at 20, carries a threadedpost 21, which fits Within the sleeve 16.

From the foregoing description, it will be apparent that by applying awrench to the head 14 of the bolt 13, and turning the bolt, the member 9may be positively moved in either circumferential direction through themedium of the crank arm 15, sleeve 16 and cross bar 19. This movement ofthe member 9 will thus move the flange 8 into engagement with the rib 6,or will positively move the flange 8 out of the path of the rib 6 topermit removal of the rim 5,

- Secured to the outer face of the felly is a locking arm 22 of anysuitable spring metal, connected at one end, as indicated at 23, to thefelly. The free end of the spring arm is formed with an opening 24,receiving the head of the bolt and locking the bolt against accidentalmovement. This lock may be used to hold the shoe 9 in either expanded orcontracted position.

In order to take up wear on the blocks 10 and 11, the threaded post 21may be screwed further out of the sleeve 16, as will be readilyunderstood.

Although We have illustrated one of the preferred embodiments of ourinvention, it will be evident that various slight changes andalterations might be made in the general form and arrangement of theparts described Without departing from the invention and hence we do notwish to limit ourselves to th precise details set tortln but shallconsider ourselves at liberty to make such slight changes andalterations as fairly iall within.

and means for turning said shaft.

2. The combination with a channelled wheel itelly and a rim mounted onthe telly, of an arc-shaped member located in the telly, means wherebycircumferential movement of said. member locks the rim on the-telly,means for movin said member ciii-cumterentially, said last mentionedmeans including a shaft journaled in the telly, a crank arm carried bythe shaft, a link connecting the crank arm and arc-shaped member, saidlink including a pair of threaded telescoping members. and means forturning said shaft.

3. The combination with a wheel telly and a rim on the telly, of anarcuate member interposed between the rim and. telly, coacting wedgeshaped lugs carried by said member and the telly, wherebycircumferential movement of the member locks the rim on the telly,actuating means for said member and means for adjusting said actuatingmeans to take up wear on the lugs.

RALPH H. PIERCE. GEORGE A. ANDERSON.

